Abstract
Surfactants are typically organic compounds containing hydrophobic and hydrophilic groups bearing polar and non-polar classes. Saponin is one of the surfactant classes present in the plant species with steroidal aglycone or triterpenoid and one or more chains of sugar characterized by its structure. Now days, consumers are becoming more aware of natural products associated with their physicochemical properties. Saponin's potential use as surfactant is caused by the combination of a non-polar sapogenin side chain and a water-soluble one, which is close to the structure of most lipophilic and hydrophilic molecular sections of synthetic surfactants. The foaming power of the 0.6% crude saponins solution, 0.6% SLS solution and 0.6% Tween 80 solution were found to be 80%, 93.87% and 97.56% respectively. It showed that 0.6% crude saponins possessed moderate foaming ability. The surface active properties of saponin were also compared with the synthetic surfactants such as sodium lauryl sulfate (SLS) and Tween 80. Surface tension of 0.6% solution of saponin, SLS and Tween 80 was determined as 37.39 mN/m, 26.15 mN/m and 37.18 mN /m respectively. Critical micelle concentration (CMC) values of saponin and Tween 80 was comparable.
Published Version
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